If you have been in a car accident, be aware that there is a little known or utilized piece of evidence in later model cars, a “black box.” Technically, it is called the Event Data Recorder (EDR). While it doesn’t necessarily record everything, it may record such things as acceleration, deceleration, impacts, braking, if seat belts were used, speed at the time of the crash, steering angle and if the airbags were deployed. This “objective” data, might help to clarify witness statements. However, be aware that in some instances the data can be overwritten. So you might have to move quickly to preserve it.